Who can tell his experience about crossing the Kaznok Pass (from Alauddin Lake - Mutney Lake - Kaznok Pass to Sarytag)? Thanks.

I didn't go there myself but I heard from other trekkers that tried it that it was very difficult and dangerous without professional gear and knowledge so they turned back.
Steep and icy.
From the Kaznok gorge it is moderate steep with no technical obstacles, but on the Mutnoye Lake side the upper part is steep and if you descent there you may need to use rope belaying. But the most important thing is to find the proper way on this side: in fact there are 2 Kaznok passes - one (more close to Chimtarga Peak) is technical (2A grade) and the 2nd is just steep as I put before. I have some photos taken from there, one (the view from Kaznok Pass to Energia - on left - and Chimtarga on the right) is here:
http://www.adventuretravel.ru/Pamiralai/fans/90/energia_chimtarga_fr_kaznok_pass.jpg
Regards - Igor